| 摘要 |
<p>The X-ray aiming appts. has a number of controls within reach of the thumb of the user's hand enclosing a guide, and in a row parallel to the guide. The latter (7) is arranged so that the controls (6b) can be actuated equally well by the thumb of either hand. It can comprise a bar running to the side of the controls and which can be swung to either side of them, or two bars on opposite sides. The radiation field (2) is pref. on the left side of the device. An electro-optical image amplifier (3) is assigned to the field (2). An X-ray film cassette can be inserted in a guide slot (4) in the housing (1).</p> |
